Ignition-plug for hydrocarbon-motors or explosion-engines.



N0. 870,9 O2. PATENTED NOV. 12, 1 907.

B. J. PENNINGTON. IGNITION PLUG FOR HYDROGARBON MOTORS OR EXPLOSION ENGINES.

APPLICATION FILED AUG. 7. 1907.

, tionembodying features entering into my invention. Fig. 2 is a longitudinal sectional view of Fig. 1. Fig.

Unis sta ns; EaiijitNT ost ich.

EDlVARD J. PENNINGTON, OF NEW YORK, N. Y.

IGNITION-PLUG FOR HYDRooARBoN-Moron's on EXPLOSION-ENGINES.

. Specification of Letters Patent.

Iatented Nov. 12, 1907.

Application filed August '7. 1907- Sarial No. 387.890-

To all whom it may concern:

Be it known that I, EDWARD J. PENNINGTON, a citizen of the United States, residing at New York, in the borough of Manhattan and State of New York; have invented new and useful Improvements in Ignition-Plugs for Hydrocarbon-Motors oi-Eicplosion-li ngines, of which the following is a specification.

This invention is more particularly intended for use with engines employing medium or poor quality, of gasolene or coal oil, kerosene or alcohol, although it is equally well adapted for use with gas or other types of explosion engines.

. in carrying out my invention, l employ for the insulation of the positive from the negative element such substances as porcelain, mica or the like, such use forming no part of my invention, which consists in novel-constructions and combinations of parts herein alter describbd, and'which are productive of useful or improved results as pointed out.

In theaccompany'ing drawing Figure 1 is aneleva- 3'is an end view of Fig. 2 modified as hereinafter mentioned. Fig. 4 is fragmentary longitudinal section also showing the modification seen in Fig. 2. Fig. 5 is an enlarged view of a part of the positive element in its 'preferred f orm. Fig. 6 is an enlarged vertical sectional view of a preferred form of the negative element. Fig. 7 is an end view, partly in section, showing the relations of thepositive and negative elements illus trated in Figs. 5 and 6. Fig. 8 is a longitudinal sectional view of a modification Fig. 9 is an end view partly in section of Fig. 8.

In'the form of my invention seen in Figs. 1 and 2, 1 represents a porcelain insulating body, which is inclosed or embraced by the main casting or frame 2, the latter being adapted to be screwed into the engine or cylinder. The casting may be chased with two or morethrcads as shown; thus one may be a metric, another a U. S. standard, and a'third a large metric, or

' otherwise. A nut3 is providedwith an annular neck which slips overthe porcelain insulating body 1, the neck having a thread 3 which engages a threaded part of the casting 2, the nut 3 fitting against a shoulder 3- of the insulating body 1, and serving to force it tightly against a packing 4 interposed between a second shouldcr 3 upon said body and another shoulder formed within the main casting 2. By such means the insu-' lating body 1 is effectively yet adjustably held within the said casting.

'lhe insulating body 1 is furnished with a longitudinal' bore into whicli is fitted the positive element '5,

the inner and outer-ends of which are threaded as shown and for purposes to be described. The outer end is furnished with a nut 6 to which the terminal ,wire is attached and the inner end with a nut 7, a washer .8 being interposed between the nut and the inner end of the porcelain material 1 as shown. I

9 represents the negative element which is confined within the cylindrical inner portion of'the frame or casting 2, a gap 10 existing between the positive element 5 and the inner annular surface of the negative element 9. A baflie plate 11, see Fig. 2, so arranged that the inner end of the plug may be wholly covered tl1ereby,,said plate being imperforate or unfurnished with holes for the egress of the gases, the

' explosion taking place inside of the combustion chamber and the flames shooting through 11018812 drilled in its walls. This construction is shown in Figs. and 2, the combustion chamber being indicated by 12. In Figs. 3 and 4 the battle plate is intact thenegative element indicated by 9' which is provided with holes leading horizontally into the cylinder.

One of the main features otmy invention, and one which gives great efliciency to this improved igniter,

I is the employment of a positive and a negative element each of which-is oppositely threaded "or equivalently formed, the positive element having, say, a right hand thread and being arranged concentrically of the annular negative element which may have, say, a left hand thread; or' the arrangement may be vice versa.

Such construction allows acurrent or spark to jump endwise or at a right angle to the reversely threaded positive and negative elements, respectively, and

also allows two or more sparks to pass from the positive to-the negative, or the negative to the positive element simultaneously. The efiiciency and certainty'oi action are thereby greatly increased. Under one form of my. invention, as seen in Figs. 1

and 2,'the combustion chamber 12 is closed by a solid baffle plate 11 and the walls of the combustion chamber are radiallyperforated as shown by 12 the expl'osaid element, the valved inner end of the rod being closed upon its seat through the medium of the outer spring 5 confined between a wall of the positive element and a nut 5 upon the outer end of the said rod.

in Fig. 2 practically two combustion chambers are found, one on each side of the negative element 9;

and my invention includes a Construction in which one or more of suchchambers may be thus employed. I

Having thus described my invention, I claim 1- 1. In an electric ignition plug, the combination of a positive and negative element each provided with threads,

tive elements concentrically arranged as described, said combustion chamberhaving inlets and outlets of aggregate area less than that of the chamber itself, substantially as set forth.

4. An electric ignition plug having a series of combus- Hon-chambers provided with holes for the egress of gases and exploded mixture having an area aggregating less than that of the combustion chambers, combined with reversely threaded positive and negative elements concentrically arranged, substantially as set fortln,

5. In an electric ignition plug having a series of combustiou chamb r rcversely threaded positive and negative elements, said combustion chambers having holes for the egress of gases and exploded mixture of an area aggregating less than that of said combustion chambers, substantially as set forth.

6. In an electric ignition plug, a main casting or frame, an insulating body forming a combustion chamber between said casting and body, and reversely threaded positive and negative elements concentrically arranged, a gap being formed betwen the said elements, substantially as set forth. V

7. In an electric ignition plug, a main casting or. frame adapted to be screwed into the cylinder, an insulating body forming a combustion chamber between said casting and body, reversely threaded positive and negative elements .concentrically arranged so as to form a gap between the said elements, and baflle plate inclosing the end of said casting. the said combustion chamber being provided with openings leading to the cylinder, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

EDWARD J. PENNINGTON.

Witnesses:

RICHARD LYNCH, .T. B. KEATING. 

